c17465be03
Automatic merge from submit-queue
Introduce node memory pressure condition to scheduler
Following the work done by @derekwaynecarr at https://github.com/kubernetes/kubernetes/pull/21274, introducing memory pressure predicate for scheduler.
Missing:
* write down unit-test
* test the implementation
At the moment this is a heads up for further discussion how the new node's memory pressure condition should be handled in the generic scheduler.
**Additional info**
* Based on [1], only best effort pods are subject to filtering.
* Based on [2], best effort pods are those pods "iff requests & limits are not specified for any resource across all containers".
[1] 542668cc79/docs/proposals/kubelet-eviction.md (scheduler)
[2] https://github.com/kubernetes/kubernetes/pull/14943
PLEASE NOTE: This document applies to the HEAD of the source tree
If you are using a released version of Kubernetes, you should refer to the docs that go with that version.
The latest release of this document can be found [here](http://releases.k8s.io/release-1.2/docs/README.md).Documentation for other releases can be found at releases.k8s.io.
Kubernetes Documentation: releases.k8s.io/HEAD
-
The User's guide is for anyone who wants to run programs and services on an existing Kubernetes cluster.
-
The Cluster Admin's guide is for anyone setting up a Kubernetes cluster or administering it.
-
The Developer guide is for anyone wanting to write programs that access the Kubernetes API, write plugins or extensions, or modify the core code of Kubernetes.
-
The Kubectl Command Line Interface is a detailed reference on the
kubectlCLI. -
The API object documentation is a detailed description of all fields found in core API objects.
-
An overview of the Design of Kubernetes
-
There are example files and walkthroughs in the examples folder.
-
If something went wrong, see the troubleshooting document for how to debug. You should also check the known issues for the release you're using.
-
To report a security issue, see Reporting a Security Issue.